Compact Ender 3 Rear Side Mount Spoolholder

After printing an even longer spoolholder (https://www.thingiverse.com/thing:4724930), I suddenly realised: Why was it getting even longer and longer??? I could just flip the spool around! And here is the result. This version is even smaller than the original side mount and is also capable of holding spools as wide as you would like (given you have the right spoolholder.) Still compatible with chains.